Friedman, Lawrence M., 1930-
The republic of choice: law, authority, and culture
Harvard University Press, 1990
 Buku Teks
Friedman, Lawrence M., 1930-
The Republic of choice law, Authority, and culture
Harvard University Press, 1990
 Buku Teks
Federal Republic
Basic law of the Federal Republic of Germany
Wiesbaden : Wiesbadener Graphische Betriebe GmbH, 1977
 Buku Referensi
Law of the Republic Indonesia number 12 of 2006 regarding citizenship of the Republic of Indonesia
Dirjen Administrasi Hukum Umum Departemen Hukum dan HAM, 2007
 Buku Referensi
Law and regulations on insurance business of the Republic of Indonesia
Depkes. RI, 1992
 Buku Teks